Composition for extracting three-dimensional traces

The invention provides a composition for extracting three-dimensional traces and a surface isolation agent. The composition is mainly suitable for extraction of on-site three-dimensional footprints, on-site three-dimensional tool traces and on-site three-dimensional special traces, and the surface isolation agent is suitable for isolation between the on-site three-dimensional traces and the composition for extracting the traces. The composition has the advantages of a high extraction speed, a light weight of a trace model, high extraction precision and convenient store and transport, obviouslyreduces the weight of the model, and can improve the forming quality of the trace model, and reduce the technological requirements during extraction; the curing time of the traces can be controlled within 10 minutes; and the extracted trace model has a smooth surface and no surface defects such as scratches and pits. 本发明提供了一种提取立体痕迹的组合物和表面隔离剂。该组合物主要适用于现场立体足迹、现场立体工具痕迹和现场立体特殊痕迹的提取，表面隔离剂适用于现场立体痕迹与提取痕迹组合物之间的隔离。具有提取速度快、痕迹模型重量轻